2231401 has 4 divisors (see below), whose sum is σ = 2234512. Its totient is φ = 2228292.

The previous prime is 2231389. The next prime is 2231407. The reversal of 2231401 is 1041322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2231401 - 2¹⁹ = 1707113 is a prime.

It is a super-3 number, since 3×2231401³ = 33331443697765722603, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130 + ... + 2116.

It is an arithmetic number, because the mean of its divisors is an integer number (558628).

2^2231401 is an apocalyptic number.

It is an amenable number.

2231401 is a deficient number, since it is larger than the sum of its proper divisors (3111).

2231401 is a wasteful number, since it uses less digits than its factorization.

2231401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2231401 is about 1493.7874681493. The cubic root of 2231401 is about 130.6750097350.

Adding to 2231401 its reverse (1041322), we get a palindrome (3272723).

The spelling of 2231401 in words is "two million, two hundred thirty-one thousand, four hundred one".